What was found
FMC LOCKED, WILL NOT ALLOW INPUT. ACFT GROUNDED. TROUBLESHOT TO A FAILED LEFT FMC BOX SWAPPED DURING TROUBLESHOOTING. REMOVED AND REPLACED THE LEFT FMC COMPUTER, CROSS LOADED SOFTWARE, BOTH FMC OPS CHECKED GOOD IAW AMM 34-61-02 PB400.
- Difficulty date
- August 11, 2018
- Submitted
- August 13, 2018
- Operation
- Air carrier
- Aircraft
- N558AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35177
- Aircraft time
- 46,087 hours, 13,613 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Fmc
- Part number
- 1762000101
- Part serial
- 002387
- Condition
- Locked
- Location
- Left
- Part time
- 46,092 hours, 13,614 cycles
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.